.grid {	width:930px; margin:auto; text-align:left; }
.grid .col { float:left; margin:0 20px 0 0; }

.grid .x1  { width:170px; }
.grid .x2  { width:360px; }
* html .grid .x2  { width:359px; }
.grid .x3  { width:550px; }
.grid .x4  { width:740px; }
.grid .x5  { width:930px; margin-right:0; }
.grid .end { margin-right:0; }

.grid .debug { border:thin solid red; }